GJ 1214 b (sometimes Gliese 1214 b, [6] also named Enaiposha since 2023 [2]) is an exoplanet that orbits the star GJ 1214, and was discovered in December 2009. Its parent star is 48 light-years (15 pc) from the Sun, in the constellation Ophiuchus.

Oct 25, 2024 · GJ 1214 b is a Neptune-like exoplanet that orbits an M-type star. Its mass is 8.17 Earths, it takes 1.6 days to complete one orbit of its star, and is 0.0149 AU from its star. Its discovery was announced in 2009.

May 10, 2023 · This artist’s concept depicts the planet GJ 1214 b, a “mini-Neptune” with what is likely a steamy, hazy atmosphere. A new study based on observations by NASA’s Webb telescope provides insight into this type of planet, the most common in the galaxy.

Oct 29, 2024 · The current Japanese research team of astronomers and planetary scientists focused their efforts on investigating the atmospheric features of one super-Earth, GJ 1214 b, which is located 40 light years from Earth in the constellation Ophiuchus, northwest of the center of our Milky Way galaxy.

Discovered by the MEarth Project and investigated further by the HARPS spectrograph on ESO’s 3.6-metre telescope at La Silla, GJ 1214 b was the second super-Earth exoplanet for which astronomers determined the mass and radius, giving vital clues about its structure. It was also the first super-Earth around which an atmosphere was found.

Jan 24, 2025 · One of these "sub-Neptunes" is a planet named GJ 1214 b, located 48 light years from the sun. According to Schlawin, it stands out as an "archetype representing an entire population of planets that is unlike anything we have in the solar system." Yet, GJ 1214 b has remained indecipherable to Earth-based telescopes, shrouded by layers of haze.

May 10, 2023 · Brand new intel on mysterious planet GJ 1214 b has been gleaned thanks to NASA’s James Webb Space Telescope. Planet GJ 1214 b was first observed by the Hubble Space Telescope but was blocked by a thick blanket of cloud and so until now has remained a …

The MEarth Project found GJ 1214 b, its only planet, with the transit method in 2009. Follow-up observations with the Hubble suggested it was a water world with a thick, steamy atmosphere. It's about eight times more massive than Earth, and about 2.75 Earth radii.

May 10, 2023 · With their observations, the astronomers have captured a complete orbit of GJ 1214 b and thus measured its surface from all sides – a first for a Mini-Neptune. The light GJ 1214 b receives from its central star serves as a probe.

Nov 17, 2021 · Two observation programs co-led by Bean and Kempton and scheduled for the first year of Webb operations will use Webb’s uniquely powerful capabilities to probe two sub-Neptune-sized planets: GJ 1214 b, the archetype sub-Neptune; and TOI-421 b, a …